Anatomic study of the canine bronchial tree using silicone casts, radiography, and CT

This prospective anatomic study examined the canine lower airway lumen morphology by visual inspection, radiography, and CT of silicone casts of two dogs. Study results showed the lobar, bronchopulmonary segmental, and pulmonary lobular organization of the lungs grossly reflected in the hierarchical...

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Bibliographic Details
Published in:Veterinary radiology & ultrasound 2023-01, Vol.64 (1), p.36-41
Main Authors: Scrivani, Peter V., Percival, Aaron
Format: Article
Language:English
Subjects:
Animals
Bronchi - diagnostic imaging
bronchiolitis
bronchitis
centrilobular
Dogs
Lung
Prospective Studies
pulmonary imaging
Radiography
Silicones
thorax
Tomography, X-Ray Computed - veterinary
tree‐in‐bud
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Summary:This prospective anatomic study examined the canine lower airway lumen morphology by visual inspection, radiography, and CT of silicone casts of two dogs. Study results showed the lobar, bronchopulmonary segmental, and pulmonary lobular organization of the lungs grossly reflected in the hierarchically clustered branching structure of the bronchial tree. Study results also provided a basis for differentiating bronchial and bronchiolar patterns. Whereas images of silicone‐filled bronchial lumens produced large‐diameter, branching, tapering bands that radiated from the lung hilus, the pattern was different for small airways. Images of silicone‐filled bronchiole lumens produced small‐diameter, branching, tapering, nonradiating lines that created a speckled pattern resembling micronodules and, unexpectedly during radiography, small‐diameter rings with air‐filled lumens attributed to positive and negative summation shadows. Consequently, imaging patterns in dogs might be affected by pulmonary lobular morphology and might differentiate large and small airway diseases.
ISSN:1058-8183
1740-8261
DOI:10.1111/vru.13141